Javascript Object Generator Function

Question

Is there a way in Javascript to generate an object , for example

function newObject(name,value) {
   // Some Awesome Logic
   return theObject
}
var test = newObject('mike',32);

And The return from new object to be an object

console.log(test); // returns an object

{
  "mike": 32
}

I need a function like this to be reusable... HELP PLEASE

might be just me but doesn't the constructor already create a new object each time you invoke it (reuseable)? — Ousmane D.
– Ousmane D., Commented Apr 3, 2017 at 21:55
Given the suggestive name of the function, that seems to be what the OP wants. — trincot
– trincot, Commented Apr 3, 2017 at 21:57
i have been trying for hours, does anyone has a code example my brain is fried.. — Alex S
– Alex S, Commented Apr 3, 2017 at 21:57
const newObject = (k, v) => ({[k]: v}); But it's not obvious how this is better than simply using the object literal in-place. — zerkms
– zerkms, Commented Apr 3, 2017 at 21:57

trincot · Accepted Answer · 2017-04-03 21:57:52Z

3

Use the constructor pattern, with the new keyword, and the property name can be defined with [ ]:

function myObject(name,value) {
   this[name] = value;
}
var test = new myObject('mike',32);
console.log(test);

answered Apr 3, 2017 at 21:57

trincot

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Comments

ibrahim mahrir · Accepted Answer · 2017-04-03 22:03:41Z

1

function newObject(name, value) {
   var theObject = {};      // the plain object
   theObject[name] = value; // assign the value under the key name (read about bracket notation)
   return theObject;        // return the object
}

var test = newObject('mike', 32);

console.log(test);

In recent ECMAScript version you can do it in one line like this:

function newObject(name, value) {
  return { [name]: value }; // the key will be the value of name not "name"
}

var test = newObject('mike', 32);

console.log(test);

answered Apr 3, 2017 at 22:03

ibrahim mahrir

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